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arXiv · hep-ph/9301249

Is Upsilon(3S) a pure S-wave?

Sumantra Chakravarty·Sun Myong Kim·Pyungwon Ko
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Abstract

Assuming the QCD multipole expansion is applicable to hadronic transitions of Upsilon(3S) into lower level bottomonia, we consider the possibility that Upsilon(3S) has a D-wave component. This assumption leads to a natural explanation of the pi-pi spectrum in Upsilon(3S) -> Upsilon(1S) pi-pi. Consequences of this assumption on other hadronic and radiative transitions of Upsilon(3S) are also discussed in the same context.

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Sumantra Chakravarty, Sun Myong Kim, Pyungwon Ko. 1993-01-19. Is Upsilon(3S) a pure S-wave?. https://doi.org/10.1103/physrevd.48.1212

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